shallot oil

force the shallots into a bottle add a quarter cup of olive oil to the shallots , this is so the bottle doesnt overheat and crack or explode also set on paper towel it absorbes the heat and wont cool to rapidly causing same results as mentioned even cooling

add the half cup of hot oil to bottle then finish with room temperature oil

note you dont have to heat the oil till boiling just enuff to get the oils of shallots to releash make sure there is no liquid moisture in bottle or cap this will cause the oil to go bad